<template>
  <div class="role-container">
    <!-- 左侧角色列表 -->
    <div class="left-wrapper">
      <div v-for="(item, index) in roleList" :key="item.roleId" class="role-item"
        :class="{ active: index === activeIndex }" @click="changeRole(index)">
        <div class="role-info">
          <svg-icon :icon-class="index === activeIndex ? 'user-active' : 'user'" class="icon" />
          {{ item.roleName }}
        </div>

        <div class="more">
          <el-dropdown trigger="click">
            <span class="el-dropdown-link">
              <svg-icon icon-class="more" />
            </span>

            <el-dropdown-menu slot="dropdown">
              <el-dropdown-item @click.native="$router.push(`/roleAdd?id=${item.roleId}`)">编辑角色</el-dropdown-item>

              <el-dropdown-item class="mydelete" @click.native="delRole(item.roleId)" >删除</el-dropdown-item>

            </el-dropdown-menu>

          </el-dropdown>
        </div>

      </div>

      <el-button class="addBtn" size="mini" @click="$router.push('/roleAdd')">添加角色</el-button>

    </div>

    <!-- 右侧树状图 -->
    <div class="right-wrapper">
      <el-tabs v-model="activeName">
        <!-- 功能权限 -->
        <el-tab-pane label="功能权限" name="tree">
          <!-- 树形列表 -->
          <div class="tree-wrapper">
            <div v-for="item in treeList" :key="item.id" class="tree-item">
              <div class="tree-title"> {{ item.title }} </div>

              <el-tree ref="tree" :props="{ label: 'title' }" :data="item.children" show-checkbox
                :default-expand-all="true" node-key="id" />
            </div>

          </div>
        </el-tab-pane>

        <!-- 成员列表 -->
        <el-tab-pane :label="`成员(${roleUserList.length})`" name="user">
          <div class="user-wrapper">
            <el-table :data="roleUserList" style="width: 100%">
              <el-table-column type="index" width="250" label="序号" />
              <el-table-column prop="name" label="员工姓名" />
              <el-table-column prop="userName" label="登录账号" />
            </el-table>

          </div>

        </el-tab-pane>

      </el-tabs>

    </div>

  </div>

</template>

<script>
import { getRoleListAPI, getTreeListAPI, getRoleDetailAPI, getRoleUserAPI, delRoleUserAPI } from '@/api/system'
// 递归处理函数
function addDisabled(treeList) {
  treeList.forEach(item => {
    item.disabled = true
    // 递归处理
    if (item.children) {
      addDisabled(item.children)
    }
  })
}
export default {
  name: 'Role',
  data() {
    return {
      roleList: [],// 角色列表
      activeIndex: 0,// 当前激活的索引
      treeList: [], // 权限树形列表
      perms: [], // 当前角色权限点列表

      activeName: 'user',// 当前激活的标签页
      roleUserList: [], // 当前角色下的成员列表
    }
  },
  async mounted() {
    // 先获取角色列表和可选权限列表
    await this.getRoleList()// 获取角色列表
    await this.getTreeList()//获取权限树形列表数据
    // 再获取当前角色下的权限列表
    this.getRoleDetail(this.roleList[0].roleId)
    // 获取当前角色下的成员列表
    this.getRoleUserList(this.roleList[0].roleId)
  },
  methods: {
    async getRoleList() {
      const res = await getRoleListAPI()
      this.roleList = res.data
    },
    // 切换角色
    changeRole(idx) {
      this.activeIndex = idx
      // 获取当前角色的id
      const roleId = this.roleList[idx].roleId
      // 1. 通过id获取当前角色下的权限点数据列表
      this.getRoleDetail(roleId)
      // 2. 通过id获取当前角色下的成员数据列表
      this.getRoleUserList(roleId)
    },
    // 获取权限树形列表数据
    async getTreeList() {
      const res = await getTreeListAPI()
      this.treeList = res.data
      // 禁用
      // 目标：treeList里面的每一项以及嵌套的子项都添加一个disabled = true
      addDisabled(this.treeList)
    },
    // 根据角色id获取当前角色下的权限点数据列表，并设置选中
    async getRoleDetail(roleId) {
      const res = await getRoleDetailAPI(roleId)
      this.perms = res.data.perms
      // 高亮权限列表
      const treeComponentList = this.$refs.tree
      // 调用setCheckedKeys方法
      treeComponentList.forEach((tree, index) => {
        tree.setCheckedKeys(this.perms[index])
      })
    },
    // 获取当前角色下的成员列表
    async getRoleUserList(roleId) {
      const res = await getRoleUserAPI(roleId)
      this.roleUserList = res.data.rows
    },

    // 删除角色
    delRole(roleId) {
      this.$confirm('是否确认删除当前角色?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        await delRoleUserAPI(roleId)
        this.getRoleList()
        this.$message({
          type: 'success',
          message: '删除成功!'
        })
      })
    }
  },
  
}
</script>


<style scoped lang="scss">
.mydelete{
  color: #eb5757;
}

::v-deep .el-tree-node__content label.el-checkbox.is-checked {
  span.is-checked .el-checkbox__inner {
    background-color: #0094ff;
  }
}

::v-deep .el-tree-node__label {
  color: rgba(0, 0, 0, 0.3);
}

.role-container {
  display: flex;
  font-size: 14px;
  background-color: #fff;
  padding: 20px;

  .left-wrapper {
    width: 200px;
    border-right: 1px solid #e4e7ec;
    padding: 4px;
    text-align: center;

    .role-item {
      position: relative;
      height: 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 20px;
      cursor: pointer;

      &.active {
        background: #edf5ff;
        color: #4770ff;
      }
    }

    .role-info {
      display: flex;
      align-items: center;

      .icon {
        margin-right: 10px;
      }
    }

    .more {
      display: flex;
      align-items: center;
    }

    .addBtn {
      width: 100%;
      margin-top: 20px;
    }
  }

  .right-wrapper {
    flex: 1;

    .tree-wrapper {
      display: flex;
      justify-content: space-between;

      .tree-item {
        flex: 1;
        border-right: 1px solid #e4e7ec;
        padding: 0px 4px;
        text-align: center;

        .tree-title {
          background: #f5f7fa;
          text-align: center;
          padding: 10px 0;
          margin-bottom: 12px;
        }
      }
    }

    ::v-deep .el-tabs__nav-wrap {
      padding-left: 20px;
    }

    .user-wrapper {
      padding: 20px;
    }
  }
}
</style>
